Table 2.
Qualitative appraisal of existing evidence.
| Gait domain | Digital mobility outcome | PD | MS | COPD | PFF |
|---|---|---|---|---|---|
| Pace | Gait speed | ++ | ++ | ++ | ++ |
| Step/stride length | ++ | + | + | ? | |
| Rhythm | Cadence | ++ | ++ | + | ? |
| Step/stride time | + | + | ? | ? | |
| Phase | Stance time | ++ | + | ? | ? |
| Swing time | + | + | ? | ? | |
| Single support time | + | + | ? | ? | |
| Double support time | + | + | ? | ? | |
| Base of support | Step width | − | + | ? | ? |
| Step width variability | − | − | ? | ? | |
| Variability | Step/stride speed variability | + | ? | ? | ? |
| Step/stride length variability | ++ | + | ? | ? | |
| Step/stride time variability | + | + | ? | ? | |
| Stance time variability | + | ? | ? | ? | |
| Swing time variability | + | + | ? | ? | |
| Single support time variability | ? | + | ? | ? | |
| Double support time variability | ? | − | ? | ? | |
| Asymmetry | All asymmetry measures | ++ | + | ? | ? |
| Volume | Daily step count | + | + | ++ | ? |
| Daily walking time | + | ? | + | ? | |
| Number of walking bouts | − | ? | ? | ? | |
| Walking bout length | ? | + | ? | ? |
PD Parkinson’s disease, MS multiple sclerosis, COPD chronic obstructive pulmonary disease, PFF proximal femoral fracture.